Reveals the mystery of one of the most famous optical illusions

A group of scientists from Flinders University and the University of South Australia found that the perception of an optical illusion, “My wife and my mother-in-law” depends on the age of the viewer. A study published in the journal Scientific Reports.

Upstairs

The peculiarity of the illusion that one person are two: a young woman (standing facing the viewer sees only her nose, the part of the eye, the ear and the neck with a necklace) and an elderly woman (standing in profile, visible to both eyes, hooked nose, mouth, and chin).

In experiment took part 666 people from 22 countries, aged 18 to 68 years.

It turned out that people under 30 often saw the girl, and people older than 30 years often saw the old lady.

The image “My wife and mother-in-law” first appeared on a German postcard from 1888. In 1915, his version was presented by the cartoonist William Ely hill, later it became a classic example of optical illusions.

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